1."We had our principal arrested."

"The seniors had our principal arrested with the help of our school security, and we recorded it all." The officer managed to convince the principal that his motorcycle was stolen property and that, since he was claiming ownership of it, he would have to go to the station — in handcuffs — and answer some questions.

2."We reshaped the shrubs spelling 'BEARS' into 'PENIS.'"

3."Seniors staged the barricade scene from Les Mis."

Universal Pictures

"We went to a tiny school that had a room with couches and things that you had to go through before you got to the classrooms. We got there early, stacked up all the furniture to make a barricade to block the entrance, held French flags, and played the Les Mis soundtrack whenever someone tried to get past us."

4."We covered the hallway in cups of water so no one could walk."

5."We set hidden alarm clocks to go off in two-minute intervals."

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"Our school always held its staff meetings in the library at the same time each week, so all the seniors brought in alarm clocks, hid them throughout the library, and set them to go off at about 2-minute intervals. The entire meeting was derailed because by the time they'd found one, the next one was going off."

7."We let pigs loose in the school."

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"Someone let three energetic pigs loose in our high school. Each pig had a number painted on its side with non-toxic paint. Their numbers were one, two, and four. It took the staff almost four hours to realize there were only three pigs."

12."We drove this car into the school and parked it in the lobby."

13."We brought a camel to our school for our last hump day."

14."We busted out of there."

Amber L.

"We bought a bunch of cheap bras at the thrift store and hung them up all over the senior patio, thanking the school for the support. Oh, and then we had a water balloon and shaving cream fight in the parking lot!"

16."The whole senior class brought their dogs to school."

17."Some guys set up a (root) beer pong table on the quad."

"I went to a Catholic high school, so the rules were pretty strict. Two guys from my class went to the quad and set up a root beer pong table and started playing. Well, within minutes, most of the faculty was all over them and shutting it down. It turns out it was a diversion for an epic food fight in the cafeteria!"

19."We stacked steel-belted tires on the flag pole."

20."We cemented an old VW Bug around the flag pole."

Cat W.

"My senior class bought an old VW Beetle, removed the seats, rolled it onto campus in the middle of the night, managed to put it around the flag pole in the middle of the quad, and then filled it with cement!"

21."We filled the teachers' lounge to the ceiling with balloons."

"When I graduated high school, we got the keys to the teachers lounge from one of the cool secretaries and, since the room was about the size of a college dorm, we filled it to the top with balloons. We then left a poster that said 'Enjoy' with safety pins taped to it."

24."We brought the outside in."

"We had AstroTurf lining our entire hallway. We set up huge tree branches and plants throughout the hall, and we had working fountains. We blasted music, and we set up umbrellas and beach chairs. None of us went to class all day; we just enjoyed ourselves with kiddie pools and a volleyball/badminton net."